Granted Patent
Utility
US 5,462,994 · App. 08/187,583
Preparation of conjugated diene-monoalkenyl arene block copolymers having a low polydispersity index
Inventors:
Grace Y. Lo, Arnold L. Gatzke
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: Jan 27, 1994
Inventors
Grace Y. Lo
Arnold L. Gatzke
Assignee (at issue)
THE DOW CHEMICAL COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.